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Crystalline Concrete Waterproofing

Common Product
MasterFormat 07 10 00 Dampproofing and Waterproofing; 07 16 00 Cementitious and Reactive Waterproofing; 07 16 16 Crystalline Waterproofing

This information reflects our best understanding of product composition in 2021.

When concrete cures a complex series of reactions occur between water and the chemicals in the concrete mix. The water becomes an integral part of the structure of the concrete, but microscopic capillaries, pores, and cracks are left behind. After...

More about Crystalline Concrete Waterproofing

When concrete cures a complex series of reactions occur between water and the chemicals in the concrete mix. The water becomes an integral part of the structure of the concrete, but microscopic capillaries, pores, and cracks are left behind. After curing, when water penetrates these voids it accelerates the deterioration of concrete. Cementitious crystalline waterproofing is designed to reduce the porosity and permeability of concrete by plugging these voids. Available products can either be incorporated as an admix in the concrete or as a coating applied to fully cured or fresh concrete. This Common Product covers products applied as coatings. 

Crystalline waterproofing not only protects against water penetration, but it also protects concrete against chemicals in the air, allows it to be subjected to a wide range of pHs, and protects against alkali aggregate reactions (AAR). In addition, it can prevent deterioration that occurs from oxidation and expansion of steel reinforcement. Products can be applied on either the positive (the wet side, e.g. the exterior of a foundation) or the negative side (the dry side, e.g. the interior of a foundation) of the concrete and are used for a wide range of applications such as foundations, basements, slabs, water reservoirs, dams, water and effluent treatment plants, parking foundations, and tunnels. Crystalline waterproofing usually comes as a powder that must be mixed with water prior to application. Two component systems are also available that may incorporate polymeric additives, but these products were beyond the scope of this Common Product. The coating then must generally be applied within twenty minutes of mixing. Cured concrete is first wetted with water, and then the coating is either sprayed or brushed on the surface. The chemicals in the coating migrate into the capillaries via diffusion and react with the byproducts of cement hydration, primarily lime, forming a structure of crystals that plugs the voids created during cement curing. Products may also be shake applied on fresh concrete. In this application method the dry powder is not mixed with water but is sprinkled directly onto fresh concrete and the same type of chemical reaction occurs. 

Product formulations are generally simple, but some manufacturers indicated the use of proprietary additives in formulations that may not be reflected in this Common Product. In addition, some literature indicated that nano materials could be used. Nano materials could introduce additional hazards but were not found to be common.

Name % Weight Whole Function GS Score Sources
Tricalcium silicate
12168-85-3
31.31% Clinker Component Subscribe to view
Dicalcium silicate
10034-77-2
5.59% Clinker Component Subscribe to view
Aluminum calcium iron oxide (AlCa2FeO5)
12068-35-8
4.03% Clinker Component Subscribe to view
Calcium aluminate
12042-78-3
3.13% Clinker Component Subscribe to view
Magnesium oxide
1309-48-4
1.79% Clinker Component Subscribe to view
Lime
1305-78-8
1.34% Clinker Component Subscribe to view
Quartz
14808-60-7
0.04% Residual Subscribe to view
CHROMIUM (VI)
18540-29-9
0.01% Residual Subscribe to view
Flue Gas Desulfurization (FGD) gypsum
2.49% Retarding Admixture Subscribe to view
Quartz
14808-60-7
32.91% Aggregate Subscribe to view
Sodium carbonate
497-19-8
8.46% Accelerator Subscribe to view
Limestone
1317-65-3
7.90% Accelerator Subscribe to view
Tartaric acid
87-69-4
0.99% Retarding Agent Subscribe to view
Name % Weight Part % Weight Whole Function GS Score Sources
Portland Cement
49.74% 49.74% Binder Subscribe to view
Clinker
(Nested within Portland Cement)
95.00% 47.25% Subscribe to view
Tricalcium silicate
12168-85-3
(Nested within Clinker)
66.27% 31.31% Clinker Component Subscribe to view
Dicalcium silicate
10034-77-2
(Nested within Clinker)
11.83% 5.59% Clinker Component Subscribe to view
Aluminum calcium iron oxide (AlCa2FeO5)
12068-35-8
(Nested within Clinker)
8.52% 4.03% Clinker Component Subscribe to view
Calcium aluminate
12042-78-3
(Nested within Clinker)
6.63% 3.13% Clinker Component Subscribe to view
Magnesium oxide
1309-48-4
(Nested within Clinker)
3.79% 1.79% Clinker Component Subscribe to view
Lime
1305-78-8
(Nested within Clinker)
2.84% 1.34% Clinker Component Subscribe to view
Quartz
14808-60-7
(Nested within Clinker)
0.10% 0.04% Residual Subscribe to view
CHROMIUM (VI)
18540-29-9
(Nested within Clinker)
0.03% 0.01% Residual Subscribe to view
Flue Gas Desulfurization (FGD) gypsum
(Nested within Portland Cement)
5.00% 2.49% Retarding Admixture Subscribe to view
Quartz
14808-60-7
32.91% 32.91% Aggregate Subscribe to view
Sodium carbonate
497-19-8
8.46% 8.46% Accelerator Subscribe to view
Limestone
1317-65-3
7.90% 7.90% Accelerator Subscribe to view
Tartaric acid
87-69-4
0.99% 0.99% Retarding Agent Subscribe to view

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Known or Potential Residuals

Known or Potential Residuals for Chemical
CASRN NAME GS SCORE TYPE FREQUENCY % Weight Chemical % Weight Product SOURCE
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Other Process Chemicals

CASRN NAME GS Score TYPE FREQUENCY % WT CHEM % WT PRODUCT SOURCES
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Sources

Sources for Common Product Data
Source Uploaded Document Linked Document
ACAA 2005
ACAA 2012
ACI Nano Silica
Aquafin-IC Gray SDS
Aquafin-IC Gray TDS
Ashgrove
Ashgrove Portland Cement Clinker
ASTM C150/150M
Ataman Chemicals 7047-84-9
Australia
Cappellesso 2016
CEM-KOTE CW Plus SDS
CEM-KOTE CW Plus TDS
Cement Chemistry and Additives
CN104355584A
CN105272065B
CN107572968A
Conpro Super Seal SDS
Conpro Super Seal TDS
Diamantopoulos 2020
Drake MSDS
Drochytka 2019
EC No 1907_2006 REACH
EMPA
EPA
EPA Appendix
EPRI2010
Ettringite Formation
FL DOT
GCP Monokote Z-146 SDS
Holcim
Hydration of Portland Cement
Illinois-concrete
JCP
Kishar 2015
Klemm 1994
Krystol T1 SDS
Krystol T1 TDS
Lafarge
Lafarge Cement Clinker
Leigh Hanson Clinker SDS
Mapei Cr VI Reducing Agents
MasterSeal 500 Gry SDS
MasterSeal 500 TDS
MCP 20210517
NBMCW200710
NIST
OSHA - Working with Portland Cement
Pattanaik 2011
Penetron SDS
Penetron TDS
Permaquik 200 SDS
Permaquik 200 TDS
Portland Clinker
Scienct Direct-cement-hydration
SINTEF
Titan
Trilon Chelating Agents
Understanding Cement
Vandex Super SDS
Vandex Super TDS
wtrproof blog
Xingdong 2017
Xypex Concentrate SDS
Xypex Concentrate TDS
Zhang 2016